<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8">
        <title>制作三个页面  A,B,C</title>
    </head>
    <body>
        <button type="button" onclick="reloads()">刷新</button>
    </body>
    <script type="text/javascript">
        function reloads(){
            location.reload();
        }
    </script>
    
</html>
